I am using Photoshop 2015 CC. Yesterday it worked now it does not. I trying to use "Transform" to change the skewdness in a jpg file. When I open edit the "Transform" is inactive (ie it is light grey) I have found no obvious help on the site.
Either make a selection or click the lock icon next to Background in the Layers palette. This will let you transform the selected area or will unlock the entire layer to transform. Note that you must flatten the image (either manually or via Export/Save for Web) to save the file as a JPEG. Unflattened files will default to saving as a PSD.
Many thanks. It would seem to be the "Selection" drop down. I have never needed to use it before and previously the process worked without selecting. It now appears to work but requires to mark selection every time so it would appear that the program has been tweeked in an update, so I now have an extra step in the process. Never mind it now works and that bis the outcome I wanted. Thanks again